Pacific Tarn, Glacial lake at 13,420 feet in White River National Forest, Colorado.
Pacific Tarn contains clear water spanning 560 feet in length and 464 feet in width, covering 4.7 acres of alpine terrain.
The lake remained unnamed until January 2004 when the United States Board on Geographic Names officially recognized it after scientific measurements.
Scientists and mountaineers gather data about this lake to understand high-altitude water bodies and their response to environmental changes.
Visitors can access Pacific Tarn through McCullough Gulch Trail during late summer months when seasonal wildlife restrictions are lifted.
Scientific measurements revealed a maximum depth of 28 feet, with water temperatures reaching 51 degrees Fahrenheit near the surface.
Location: Colorado
GPS coordinates: 39.41972,-106.11972
Latest update: April 14, 2025 11:38
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